66055226512211 has 4 divisors (see below), whose sum is σ = 66055351689000. Its totient is φ = 66055101335424.

The previous prime is 66055226512207. The next prime is 66055226512217. The reversal of 66055226512211 is 11221562255066.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66055226512211 - 2² = 66055226512207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66055226512217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61793486 + ... + 62853363.

It is an arithmetic number, because the mean of its divisors is an integer number (16513837922250).

Almost surely, 2^{66055226512211} is an apocalyptic number.

66055226512211 is a deficient number, since it is larger than the sum of its proper divisors (125176789).

66055226512211 is a wasteful number, since it uses less digits than its factorization.

66055226512211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125176788.

The product of its (nonzero) digits is 432000, while the sum is 44.

Adding to 66055226512211 its reverse (11221562255066), we get a palindrome (77276788767277).

The spelling of 66055226512211 in words is "sixty-six trillion, fifty-five billion, two hundred twenty-six million, five hundred twelve thousand, two hundred eleven".